362 
FZNT31 KNHC 120921
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
421 AM EST Thu Jan 12 2023

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 22N between 55W and 64W, the SW N Atlantic S of
31N W of 65W including Bahamas, and the Caribbean Sea.

Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

Synopsis for Caribbean Sea and Tropical N Atlantic from
07N to 19N between 55W and 64W

.SYNOPSIS...Pulsing fresh to strong northeast to east trade 
winds in the south-central Caribbean and near the coast of 
Colombia will continue through Fri night, then return Sun night 
through early next. Moderate to fresh trade winds over most of 
the basin will continue through this morning. A cold front will 
reach the Yucatan Channel by Fri night followed by fresh to 
locally strong NW to N winds. The front will reach from eastern 
Cuba to the Gulf of Honduras on Sat afternoon, and from Haiti to 
near Cabo Gracias a Dios, Nicaragua Sat night into Sun. The front
could reach the northeastern Caribbean Sun night through Mon 
night as it weakens to a shear line. 

NW Caribbean W of 85W

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.FRI...N winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 ft. 
.FRI NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...N winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 4 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt S of 18N, and NE less than 10 kt
elsewhere. Seas 3 to 5 ft. 
.FRI...S of 18N, NE winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Elsewhere, NW winds less than 10 kt.
Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 15 to 20 kt within 90 nm of coast of Colombia,
and NE 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...E winds 15 to 20 kt within 90 nm of coast of Colombia,
and NE 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.FRI NIGHT...NE winds 15 to 20 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 4 to 5 ft. 
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

SW Caribbean S of 11N

.TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

Caribbean between 64W and 72W

.TODAY...NE winds 10 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 3 to 5 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.SAT NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 3 to 4 ft. 
.SUN...E winds less than 10 kt, shifting to NE in the afternoon.
Seas 3 to 4 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 

Offshore Leeward Islands and adjacent ATLC waters from 15N to
19N W of 55W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.MON...E winds less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 

Offshore Windward Islands and adjacent ATLC waters from 07N to
15N W of 55W

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...E winds less than 10 kt. Seas 5 to 7 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 4 to 6 ft.
.MON...NE winds less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A stationary front extending from 31N51W to near 
23N63W will begin to shift E as a cold front this morning, 
exiting the area by early this evening. High pressure will
follow in behind the front. A strong cold front will move off 
the northeast Florida coast early Fri. As the front moves 
eastward across the forecast waters, expect increasing winds and 
building seas. Fresh to strong winds are forecast on either side 
of the front during the upcoming weekend. These winds could reach
minimal gale force across the waters N of 28N Sat night into 
early on Sun. Seas of 12-15 ft are expected with the strongest 
winds NE of the Bahamas. 

ATLC waters from 27N to 31N W of 77W

.TODAY...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...S winds 15 to 25 kt. Seas 4 to 6 ft. 
.FRI...W winds 15 to 25 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NW winds 20 to 25 kt. Seas 7 to 10 ft. 
.SAT...NW winds 20 to 25 kt. Seas 10 to 14 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 10 to 15 ft. 
.SUN...N winds 10 to 20 kt. Seas 8 to 12 ft, subsiding to 7 to
9 ft in the afternoon. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON...NE winds 10 kt in the morning, becoming variable winds
less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 4 to 6 ft. 

ATLC waters from 27N to 31N between 65W and 77W

...GALE CONDITIONS POSSIBLE BETWEEN 65W AND 67W SAT...

.TODAY...E winds less than 10 kt. Seas 3 to 5 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...S winds 10 to 20 kt. Seas 6 to 9 ft W of 70W, and 4 to
6 ft elsewhere. 
.FRI NIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. 
.SAT...Between 65W and 67W, S to SW winds 25 to 35 kt. Seas 10 to
15 ft. Elsewhere, W winds 15 to 25 kt. Seas 8 to 13 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 11 to 14 ft. 
.SUN...NW winds 15 to 25 kt. Seas 10 to 13 ft. 
.SUN NIGHT...NW winds 15 to 25 kt. Seas 9 to 14 ft. 
.MON...NW winds 10 to 20 kt. Seas 8 to 13 ft. 
.MON NIGHT...NW winds 10 to 20 kt. Seas 8 to 13 ft. 

Bahamas N of 22N

.TODAY...E winds 10 to 15 kt. Seas 3 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI...S winds 10 to 15 kt. Seas 2 ft or less. 
.FRI NIGHT...W winds 15 to 25 kt. Seas 3 to 5 ft. 
.SAT...NW winds 15 to 25 kt. Seas 5 to 7 ft. 
.SAT NIGHT...NW winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...N winds 10 to 15 kt, shifting to NE after midnight.
Seas 4 to 6 ft. 
.MON...NE winds less than 10 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 

ATLC waters from 22N to 27N between 65W and the Bahamas

.TODAY...NE winds 10 to 15 kt. Seas 4 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.FRI...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...SW winds 15 to 25 kt. Seas 8 to 11 ft. 
.SAT NIGHT...W winds 15 to 25 kt. Seas 8 to 13 ft. 
.SUN...NW winds 15 to 25 kt. Seas 9 to 13 ft. 
.SUN NIGHT...N winds 15 to 25 kt. Seas 9 to 14 ft. 
.MON...N winds 10 to 15 kt. Seas 8 to 11 ft. 
.MON NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 

ATLC waters S of 22N W of 65W

.TODAY...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...SW winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...W winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...NW winds 10 to 20 kt. Seas 6 to 8 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON...N winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. 

ATLC waters from 19N to 22N between 55W and 65W

.TODAY...E winds 10 kt. Seas 5 to 6 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.FRI...E winds 15 kt. Seas 5 to 6 ft. 
.FRI NIGHT...E winds 15 to 20 kt. Seas 5 to 7 ft. 
.SAT...SE winds 10 to 20 kt. Seas 6 to 7 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN...S winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON...NW winds 10 to 15 kt. Seas 6 to 9 ft. 
.MON NIGHT...N winds less than 10 kt. Seas 6 to 9 ft.